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<br /> <br />Earthmoving <br />Sand and gravel will be excavated by front end loader and transported to the processing site by a <br />conveyor belt system. It is anticipated that gravel materials removed from the six phases will total <br />approximately 5.5 million tons (800,000 - 1.5 million tons per year). <br />Al! water diversions and impoundments <br />Wash water will be impounded in a small pond within the appropriate processing azea and recycled <br />through a settling pond. Water from dewatering operations will be dischazged into a settling pond <br />then to St. Vrain Creek, consistent with CDPS permit. Ultimately, the settling ponds will be allowed <br />to fill with silts. These silt ponds will create natural wetland basins that will be an integral part of <br />our overall reclamation plan. <br />The size ojarea to be worked at any orre time <br />Aggregate will mine the site in pods to minimize the amount of land disturbed at any one time. A <br />pod may range in size from I3 to 33 acres. In addition to the processing site, the area disturbed <br />during any phase of mining will be limited to either one individual pod or portions of two pods, <br />based on mining activity. In no case, however, will additional pods be opened, unless reclamation is <br />complete on the first mined of the two open pods. <br />An approximate timetable to describe the mining operation: <br />The site will be mined and reclaimed concurrently. Please see the Mining Plan Map (Exhibit C) for <br />the mining sequence. Please refer to Exhibit E -Reclamation Plan, section (e)(i) for timing <br />information. <br />Nature, depth, and thickness of the deposit and [hickness ar:d type of overburden to be removed <br />The drill logs indicate [he depth of overburden varies from zero to five feet. The depth of the sand <br />and gravel deposit varies from eight to 23 feet. <br />Nature of the stratum immediately beneath the material to be mined in sedimen[ary deposits <br />The azea underlying the bedrock in this area is the Pierre shale formation which is approximately <br />3,000 feet thick at the location of the proposed mining activity. <br />Primary and secondary commodities to be mined/extracted and describe the intended use <br />The primary commodity to be mined extracted is sand and grave]. The intended use is for <br />construction materials. <br />Intended use of al! expected incidental products to be mined <br />The secondary commodity to be mined extracted is gold. The rate of gold extraction will not likely <br />exceed %: ounce per 10,000 tons. <br />AGGREGATE INDUSTRIES, INC. - FREDSTROM SITE 112 PERMIT PAGE -14- <br />